Airworthiness Directives; Learjet Inc. Model 45 Airplanes, 63572-63574 [E9-28550]
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63572
Federal Register / Vol. 74, No. 232 / Friday, December 4, 2009 / Rules and Regulations
(4) You may review copies of the service
information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the
availability of this material at the FAA, call
425–227–1221 or 425–227–1152.
(5) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
information on the availability of this
material at NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/ibr_
locations.html.
Issued in Renton, Washington, on
November 18, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E9–28299 Filed 12–3–09; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–0719; Directorate
Identifier 2009–NM–078–AD; Amendment
39–16116; AD 2009–24–22]
RIN 2120–AA64
Airworthiness Directives; Learjet Inc.
Model 45 Airplanes
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
We are adopting a new
airworthiness directive (AD) for certain
Learjet Model 45 airplanes. This AD
requires inspecting the baggage bay door
fire barrier seal for inconel mesh in the
fire barrier seal material; for certain
airplanes, inspecting the fiberglass
doublers for presence of red Room
Temperature Vulcanizing (RTV) sealant;
SUMMARY:
and doing related investigative and
corrective actions if necessary. This AD
results from reports of incorrect external
baggage door seal material and door seal
sealant, as well as incorrect sealant on
interior baggage panels used during
manufacture of the airplane. We are
issuing this AD to prevent the use of
door seals and sealant that do not meet
flammability requirements, which could
result in an uncontrollable and
undetected fire within the baggage
compartment.
DATES: This AD is effective January 8,
2010.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in the AD
as of January 8, 2010.
ADDRESSES: For service information
identified in this AD, contact Learjet,
Inc., One Learjet Way, Wichita, Kansas
67209–2942; telephone 316–946–2000;
fax 316–946–2220; e-mail
ac.ict@aero.bombardier.com; Internet
https://www.bombardier.com. You may
review copies of the referenced service
information at the FAA, Transport
Airplane Directorate, 1601 Lind
Avenue, SW., Renton, Washington. For
information on the availability of this
material at the FAA, call 425–227–1221
or 425–227–1152.
1200 New Jersey Avenue, SE.,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
William Griffith, Aerospace Engineer,
Airframe Branch, ACE–118W, FAA,
Wichita Aircraft Certification Office,
1801 Airport Road, Room 100, MidContinent Airport, Wichita, Kansas
67209; telephone (316) 946–4116; fax
(316) 946–4107.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an airworthiness
directive (AD) that would apply to
certain Learjet Inc. Model 45 airplanes.
That NPRM was published in the
Federal Register on August 27, 2009 (74
FR 43645). That NPRM proposed to
require inspecting the baggage bay door
fire barrier seal for inconel mesh in the
fire barrier seal material; for certain
airplanes, inspecting the fiberglass
doublers for presence of red Room
Temperature Vulcanizing (RTV) sealant;
and doing related investigative and
corrective actions if necessary.
Comments
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Management Facility between 9
a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The AD
docket contains this AD, the regulatory
evaluation, any comments received, and
other information. The address for the
Docket Office (telephone 800–647–5527)
is the Document Management Facility,
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM or
on the determination of the cost to the
public.
Conclusion
We reviewed the relevant data and
determined that air safety and the
public interest require adopting the AD
as proposed.
Costs of Compliance
We estimate that this AD affects 256
airplanes of U.S. registry. The following
table provides the estimated costs for
U.S. operators to comply with this AD.
ESTIMATED COSTS
Action
Work hours
Inspection and modification of red RTV sealant ..
Inspection and modification of fire barrier seal ....
jlentini on DSKJ8SOYB1PROD with RULES
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. ‘‘Subtitle VII:
Aviation Programs,’’ describes in more
VerDate Nov<24>2008
19:39 Dec 03, 2009
Jkt 220001
Average
labor rate
per hour
10
6
$80
80
Cost per
product
$800
480
detail the scope of the Agency’s
authority.
We are issuing this rulemaking under
the authority described in ‘‘Subtitle VII,
Part A, Subpart III, Section 44701:
General requirements.’’ Under that
section, Congress charges the FAA with
promoting safe flight of civil aircraft in
air commerce by prescribing regulations
PO 00000
Frm 00042
Fmt 4700
Sfmt 4700
Number of U.S.registered airplanes
Up to 256 ....................
Up to 256 ....................
Fleet cost
Up to $204,800.
Up to $122,880.
for practices, methods, and procedures
the Administrator finds necessary for
safety in air commerce. This regulation
is within the scope of that authority
because it addresses an unsafe condition
that is likely to exist or develop on
products identified in this rulemaking
action.
E:\FR\FM\04DER1.SGM
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Federal Register / Vol. 74, No. 232 / Friday, December 4, 2009 / Rules and Regulations
Regulatory Findings
Subject
This AD will not have federalism
implications under Executive Order
13132. This AD will not have a
substantial direct effect on the States, on
the relationship between the national
government and the States, or on the
distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Is not a ‘‘significant rule’’ under
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979), and
(3) Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
You can find our regulatory
evaluation and the estimated costs of
compliance in the AD Docket.
(d) Air Transport Association (ATA) of
America Code 52: Doors, and ATA Code 25:
Equipment/Furnishings.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
■
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
■
2009–24–22 Learjet Inc. (Formerly Gates
Learjet Corporation): Amendment 39–
16116. Docket No. FAA–2009–0719;
Directorate Identifier 2009–NM–078–AD.
Effective Date
(a) This airworthiness directive (AD) is
effective January 8, 2010.
Affected ADs
(b) None.
Unsafe Condition
(e) This AD results from reports of
incorrect external baggage door seal material
and door seal sealant, as well as incorrect
sealant on interior baggage panels used
during manufacture of the airplane. The
Federal Aviation Administration is issuing
this AD to prevent the use of door seals and
sealant that do not meet flammability
requirements, which could result in an
uncontrollable and undetected fire within the
baggage compartment.
Compliance
(f) You are responsible for having the
actions required by this AD performed within
the compliance times specified, unless the
actions have already been done.
Inspection of Red Room Temperature
Vulcanizing (RTV) Sealant in Aft Baggage
Bay
(g) For airplanes having serial numbers 45–
005 through 45–314 inclusive and 45–2001
through 45–2065 inclusive: Within 300 flight
hours after the effective date of this AD, do
a general visual inspection of the outer
surfaces of the fiberglass doublers for the
presence of red RTV sealant, in accordance
with the Accomplishment Instructions in
Bombardier Service Bulletin 45–25–21,
Revision 1, dated January 19, 2009; or 40–25–
11, Revision 1, dated January 19, 2009; as
applicable. If any red RTV sealant is found,
before further flight, replace the sealant, in
accordance with the Accomplishment
Instructions in Bombardier Service Bulletin
45–25–21, Revision 1, dated January 19,
2009; or 40–25–11, Revision 1, dated January
19, 2009; as applicable.
Note 1: For the purposes of this AD, a
general visual inspection is: ‘‘A visual
examination of an interior or exterior area,
installation, or assembly to detect obvious
damage, failure, or irregularity. This level of
inspection is made from within touching
distance unless otherwise specified. A mirror
may be necessary to ensure visual access to
all surfaces in the inspection area. This level
of inspection is made under normally
available lighting conditions such as
daylight, hangar lighting, flashlight, or
droplight and may require removal or
opening of access panels or doors. Stands,
ladders, or platforms may be required to gain
proximity to the area being checked.’’
jlentini on DSKJ8SOYB1PROD with RULES
Applicability
Inspection of Baggage Bay Door Fire Barrier
Seal
(c) This AD applies to Learjet Inc. Model
45 airplanes, certificated in any category,
serial numbers 45–005 through 45–321
inclusive, 45–323 through 45–332 inclusive,
and 45–2001 through 45–2075 inclusive.
(h) For all airplanes: Within 300 flight
hours after the effective date of this AD, do
a general visual inspection of the baggage bay
door fire barrier seal for the presence of metal
inconel mesh in the material, and do all
VerDate Nov<24>2008
19:39 Dec 03, 2009
Jkt 220001
PO 00000
Frm 00043
Fmt 4700
Sfmt 4700
63573
applicable related investigative and
corrective actions, in accordance with the
Accomplishment Instructions in Bombardier
Service Bulletin 45–52–16, Revision 1, dated
July 21, 2008; or 40–52–07, Revision 1, dated
July 21, 2008; as applicable. Do all applicable
related investigative and corrective actions
before further flight in accordance with the
Accomplishment Instructions in Bombardier
Service Bulletin 45–52–16, Revision 1, dated
July 21, 2008; or 40–52–07, Revision 1, dated
July 21, 2008; as applicable.
Alternative Methods of Compliance
(AMOCs)
(i)(1) The Manager, Wichita Aircraft
Certification Office (ACO), FAA, has the
authority to approve AMOCs for this AD, if
requested using the procedures found in 14
CFR 39.19. Send information to ATTN:
William Griffith, Aerospace Engineer,
Airframe Branch, ACE–118W, FAA, Wichita
ACO, 1801 Airport Road, Room 100, MidContinent Airport, Wichita, Kansas 67209;
telephone (316) 946–4116; fax (316) 946–
4107.
(2) To request a different method of
compliance or a different compliance time
for this AD, follow the procedures in 14 CFR
39.19. Before using any approved AMOC on
any airplane to which the AMOC applies,
notify your principal maintenance inspector
(PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal
inspector, your local Flight Standards District
Office. The AMOC approval letter must
specifically reference this AD.
Material Incorporated by Reference
(j) You must use the service information
contained in Table 1 of this AD to do the
actions required by this AD, unless the AD
specifies otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) For service information identified in
this AD, contact Learjet, Inc., One Learjet
Way, Wichita, Kansas 67209–2942; telephone
316–946–2000; fax 316–946–2220; e-mail
ac.ict@aero.bombardier.com; Internet https://
www.bombardier.com.
(3) You may review copies of the service
information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the
availability of this material at the FAA, call
425–227–1221 or 425–227–1152.
(4) You may also review copies of the
service information that is incorporated by
reference at the National Archives and
Records Administration (NARA). For
information on the availability of this
material at NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
E:\FR\FM\04DER1.SGM
04DER1
63574
Federal Register / Vol. 74, No. 232 / Friday, December 4, 2009 / Rules and Regulations
TABLE 1—MATERIAL INCORPORATED BY REFERENCE
Service bulletin
Bombardier
Bombardier
Bombardier
Bombardier
Service
Service
Service
Service
Bulletin
Bulletin
Bulletin
Bulletin
Revision
40–25–11 .....................................................................................................
45–25–21. ....................................................................................................
40–52–07. ....................................................................................................
45–52–16. ....................................................................................................
Issued in Renton, Washington, on
November 19, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E9–28550 Filed 12–3–09; 8:45 am]
BILLING CODE 4910–13–P
You may examine the AD
docket on the Internet at https://
www.regulations.gov or in person at the
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue, SE.,
Washington, DC.
ADDRESSES:
[Docket No. FAA–2009–0784; Directorate
Identifier 2009–NM–109–AD; Amendment
39–16124; AD 2009–25–05]
FOR FURTHER INFORMATION CONTACT:
Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems
Branch, ANE–171, FAA, New York
Aircraft Certification Office, 1600
Stewart Avenue, Suite 410, Westbury,
New York 11590; telephone (516) 228–
7318; fax (516) 794–5531.
RIN 2120–AA64
SUPPLEMENTARY INFORMATION:
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
Airworthiness Directives; Bombardier
Model DHC–8–400 Series Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
SUMMARY: We are adopting a new
airworthiness directive (AD) for the
products listed above. This AD results
from mandatory continuing
airworthiness information (MCAI)
originated by an aviation authority of
another country to identify and correct
an unsafe condition on an aviation
product. The MCAI describes the unsafe
condition as:
jlentini on DSKJ8SOYB1PROD with RULES
Several operators have reported cases of
inadvertent single spoiler deployment during
flight on the DHC–8 Series 400 aircraft.
Investigation has revealed that the probable
cause for this deployment is internal
contamination of the Lift/Dump (L/D) valve
and moisture ingress into the L/D valve
armature.
This condition, if not corrected, could
cause uncommanded deployment of the
spoilers resulting in increased drag and in
combination with a loss of aileron, could
result in a significant reduction in aircraft
roll control.
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective
January 8, 2010.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of January 8, 2010.
VerDate Nov<24>2008
17:09 Dec 03, 2009
Jkt 220001
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM was published in the Federal
Register on September 4, 2009 (74 FR
45783). That NPRM proposed to correct
an unsafe condition for the specified
products. The MCAI states:
Several operators have reported cases of
inadvertent single spoiler deployment during
flight on the DHC–8 Series 400 aircraft.
Investigation has revealed that the probable
cause for this deployment is internal
contamination of the Lift/Dump (L/D) valve
and moisture ingress into the L/D valve
armature.
This condition, if not corrected, could
cause uncommanded deployment of the
spoilers resulting in increased drag and in
combination with a loss of aileron, could
result in a significant reduction in aircraft
roll control.
Corrective actions include
incorporating a modification to add a
filter/restrictor fitting to the spoiler lift
dump valve, which includes upgrading,
testing, and re-identifying the valve after
replacing the pressure port inlet fitting.
You may obtain further information by
examining the MCAI in the AD docket.
Comments
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM or
on the determination of the cost to the
public.
PO 00000
Frm 00044
Fmt 4700
Sfmt 4700
Date
1
1
1
1
January 19, 2009.
January 19, 2009.
July 21, 2008.
July 21, 2008.
Change to Corrective Action Statement
We have added information to the
corrective action statement in the
preamble and paragraph (e) of the AD
for clarity.
Change to Alternative Methods of
Compliance (AMOC) Paragraph
We have updated paragraph (g)(1) of
this AD to provide the appropriate
contact information to use when
submitting requests for approval of an
AMOC.
Conclusion
We reviewed the available data and
determined that air safety and the
public interest require adopting the AD
with the changes described previously.
We also determined that these changes
will not increase the economic burden
on any operator or increase the scope of
the AD.
Differences Between This AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have required different
actions in this AD from those in the
MCAI in order to follow our FAA
policies. Any such differences are
highlighted in a NOTE within the AD.
Costs of Compliance
We estimate that this AD will affect
about 61 products of U.S. registry. We
also estimate that it will take about 6
work-hours per product to comply with
the basic requirements of this AD. The
average labor rate is $80 per work-hour.
Required parts will cost about $0 per
product. Where the service information
lists required parts costs that are
covered under warranty, we have
assumed that there will be no charge for
these parts. As we do not control
warranty coverage for affected parties,
some parties may incur costs higher
than estimated here. Based on these
E:\FR\FM\04DER1.SGM
04DER1
]]>Agencies
[Federal Register Volume 74, Number 232 (Friday, December 4, 2009)]
[Rules and Regulations]
[Pages 63572-63574]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-28550]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-0719; Directorate Identifier 2009-NM-078-AD;
Amendment 39-16116; AD 2009-24-22]
RIN 2120-AA64
Airworthiness Directives; Learjet Inc. Model 45 Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Learjet Model 45 airplanes. This AD requires inspecting the baggage bay
door fire barrier seal for inconel mesh in the fire barrier seal
material; for certain airplanes, inspecting the fiberglass doublers for
presence of red Room Temperature Vulcanizing (RTV) sealant; and doing
related investigative and corrective actions if necessary. This AD
results from reports of incorrect external baggage door seal material
and door seal sealant, as well as incorrect sealant on interior baggage
panels used during manufacture of the airplane. We are issuing this AD
to prevent the use of door seals and sealant that do not meet
flammability requirements, which could result in an uncontrollable and
undetected fire within the baggage compartment.
DATES: This AD is effective January 8, 2010.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of January 8,
2010.
ADDRESSES: For service information identified in this AD, contact
Learjet, Inc., One Learjet Way, Wichita, Kansas 67209-2942; telephone
316-946-2000; fax 316-946-2220; e-mail ac.ict@aero.bombardier.com;
Internet https://www.bombardier.com. You may review copies of the
referenced service information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information
on the availability of this material at the FAA, call 425-227-1221 or
425-227-1152.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Management Facility
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this AD, the regulatory evaluation,
any comments received, and other information. The address for the
Docket Office (telephone 800-647-5527) is the Document Management
Facility, U.S. Department of Transportation, Docket Operations, M-30,
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE.,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: William Griffith, Aerospace Engineer,
Airframe Branch, ACE-118W, FAA, Wichita Aircraft Certification Office,
1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas
67209; telephone (316) 946-4116; fax (316) 946-4107.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an airworthiness directive (AD) that would apply to
certain Learjet Inc. Model 45 airplanes. That NPRM was published in the
Federal Register on August 27, 2009 (74 FR 43645). That NPRM proposed
to require inspecting the baggage bay door fire barrier seal for
inconel mesh in the fire barrier seal material; for certain airplanes,
inspecting the fiberglass doublers for presence of red Room Temperature
Vulcanizing (RTV) sealant; and doing related investigative and
corrective actions if necessary.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
We reviewed the relevant data and determined that air safety and
the public interest require adopting the AD as proposed.
Costs of Compliance
We estimate that this AD affects 256 airplanes of U.S. registry.
The following table provides the estimated costs for U.S. operators to
comply with this AD.
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Average
Action Work hours labor rate Cost per Number of U.S.- registered airplanes Fleet cost
per hour product
--------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection and modification of red 10 $80 $800 Up to 256........................... Up to $204,800.
RTV sealant.
Inspection and modification of fire 6 80 480 Up to 256........................... Up to $122,880.
barrier seal.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. ``Subtitle VII: Aviation
Programs,'' describes in more detail the scope of the Agency's
authority.
We are issuing this rulemaking under the authority described in
``Subtitle VII, Part A, Subpart III, Section 44701: General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
[[Page 63573]]
Regulatory Findings
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979), and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
You can find our regulatory evaluation and the estimated costs of
compliance in the AD Docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new AD:
2009-24-22 Learjet Inc. (Formerly Gates Learjet Corporation):
Amendment 39-16116. Docket No. FAA-2009-0719; Directorate Identifier
2009-NM-078-AD.
Effective Date
(a) This airworthiness directive (AD) is effective January 8,
2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Learjet Inc. Model 45 airplanes,
certificated in any category, serial numbers 45-005 through 45-321
inclusive, 45-323 through 45-332 inclusive, and 45-2001 through 45-
2075 inclusive.
Subject
(d) Air Transport Association (ATA) of America Code 52: Doors,
and ATA Code 25: Equipment/Furnishings.
Unsafe Condition
(e) This AD results from reports of incorrect external baggage
door seal material and door seal sealant, as well as incorrect
sealant on interior baggage panels used during manufacture of the
airplane. The Federal Aviation Administration is issuing this AD to
prevent the use of door seals and sealant that do not meet
flammability requirements, which could result in an uncontrollable
and undetected fire within the baggage compartment.
Compliance
(f) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.
Inspection of Red Room Temperature Vulcanizing (RTV) Sealant in Aft
Baggage Bay
(g) For airplanes having serial numbers 45-005 through 45-314
inclusive and 45-2001 through 45-2065 inclusive: Within 300 flight
hours after the effective date of this AD, do a general visual
inspection of the outer surfaces of the fiberglass doublers for the
presence of red RTV sealant, in accordance with the Accomplishment
Instructions in Bombardier Service Bulletin 45-25-21, Revision 1,
dated January 19, 2009; or 40-25-11, Revision 1, dated January 19,
2009; as applicable. If any red RTV sealant is found, before further
flight, replace the sealant, in accordance with the Accomplishment
Instructions in Bombardier Service Bulletin 45-25-21, Revision 1,
dated January 19, 2009; or 40-25-11, Revision 1, dated January 19,
2009; as applicable.
Note 1: For the purposes of this AD, a general visual
inspection is: ``A visual examination of an interior or exterior
area, installation, or assembly to detect obvious damage, failure,
or irregularity. This level of inspection is made from within
touching distance unless otherwise specified. A mirror may be
necessary to ensure visual access to all surfaces in the inspection
area. This level of inspection is made under normally available
lighting conditions such as daylight, hangar lighting, flashlight,
or droplight and may require removal or opening of access panels or
doors. Stands, ladders, or platforms may be required to gain
proximity to the area being checked.''
Inspection of Baggage Bay Door Fire Barrier Seal
(h) For all airplanes: Within 300 flight hours after the
effective date of this AD, do a general visual inspection of the
baggage bay door fire barrier seal for the presence of metal inconel
mesh in the material, and do all applicable related investigative
and corrective actions, in accordance with the Accomplishment
Instructions in Bombardier Service Bulletin 45-52-16, Revision 1,
dated July 21, 2008; or 40-52-07, Revision 1, dated July 21, 2008;
as applicable. Do all applicable related investigative and
corrective actions before further flight in accordance with the
Accomplishment Instructions in Bombardier Service Bulletin 45-52-16,
Revision 1, dated July 21, 2008; or 40-52-07, Revision 1, dated July
21, 2008; as applicable.
Alternative Methods of Compliance (AMOCs)
(i)(1) The Manager, Wichita Aircraft Certification Office (ACO),
FAA, has the authority to approve AMOCs for this AD, if requested
using the procedures found in 14 CFR 39.19. Send information to
ATTN: William Griffith, Aerospace Engineer, Airframe Branch, ACE-
118W, FAA, Wichita ACO, 1801 Airport Road, Room 100, Mid-Continent
Airport, Wichita, Kansas 67209; telephone (316) 946-4116; fax (316)
946-4107.
(2) To request a different method of compliance or a different
compliance time for this AD, follow the procedures in 14 CFR 39.19.
Before using any approved AMOC on any airplane to which the AMOC
applies, notify your principal maintenance inspector (PMI) or
principal avionics inspector (PAI), as appropriate, or lacking a
principal inspector, your local Flight Standards District Office.
The AMOC approval letter must specifically reference this AD.
Material Incorporated by Reference
(j) You must use the service information contained in Table 1 of
this AD to do the actions required by this AD, unless the AD
specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Learjet, Inc., One Learjet Way, Wichita, Kansas 67209-2942;
telephone 316-946-2000; fax 316-946-2220; e-mail
ac.ict@aero.bombardier.com; Internet https://www.bombardier.com.
(3) You may review copies of the service information at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the availability of this material at
the FAA, call 425-227-1221 or 425-227-1152.
(4) You may also review copies of the service information that
is incorporated by reference at the National Archives and Records
Administration (NARA). For information on the availability of this
material at NARA, call 202-741-6030, or go to: https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
[[Page 63574]]
Table 1--Material Incorporated by Reference
----------------------------------------------------------------------------------------------------------------
Service bulletin Revision Date
----------------------------------------------------------------------------------------------------------------
Bombardier Service Bulletin 40-25-11........... 1 January 19, 2009.
Bombardier Service Bulletin 45-25-21........... 1 January 19, 2009.
Bombardier Service Bulletin 40-52-07........... 1 July 21, 2008.
Bombardier Service Bulletin 45-52-16........... 1 July 21, 2008.
----------------------------------------------------------------------------------------------------------------
Issued in Renton, Washington, on November 19, 2009.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E9-28550 Filed 12-3-09; 8:45 am]
BILLING CODE 4910-13-P
